Comment on

• Dynamic exercise programs (aerobic capacity and/or muscle strength training) in patients with rheumatoid arthritis.

  Hurkmans E, van der Giesen FJ, Vliet Vlieland TP, Schoones J, Van den Ende EC. Hurkmans E, et al. Cochrane Database Syst Rev. 2009 Oct 7;2009(4):CD006853. doi: 10.1002/14651858.CD006853.pub2. Cochrane Database Syst Rev. 2009. PMID: 19821388 Free PMC article.
• Nonpharmacological treatment of rheumatoid arthritis.

  Vliet Vlieland TP, van den Ende CH. Vliet Vlieland TP, et al. Curr Opin Rheumatol. 2011 May;23(3):259-64. doi: 10.1097/BOR.0b013e32834540fb. Curr Opin Rheumatol. 2011. PMID: 21346575 Review.
• Benefits of exercise in rheumatoid arthritis.

  Cooney JK, Law RJ, Matschke V, Lemmey AB, Moore JP, Ahmad Y, Jones JG, Maddison P, Thom JM. Cooney JK, et al. J Aging Res. 2011 Feb 13;2011:681640. doi: 10.4061/2011/681640. J Aging Res. 2011. PMID: 21403833 Free PMC article.
• Disease activity and low physical activity associate with number of hospital admissions and length of hospitalisation in patients with rheumatoid arthritis.

  Metsios GS, Stavropoulos-Kalinoglou A, Treharne GJ, Nevill AM, Sandoo A, Panoulas VF, Toms TE, Koutedakis Y, Kitas GD. Metsios GS, et al. Arthritis Res Ther. 2011 Jun 29;13(3):R108. doi: 10.1186/ar3390. Arthritis Res Ther. 2011. PMID: 21714856 Free PMC article.
• Poor physical function, pain and limited exercise: risk factors for premature mortality in the range of smoking or hypertension, identified on a simple patient self-report questionnaire for usual care.

  Sokka T, Pincus T. Sokka T, et al. BMJ Open. 2011 Jun 18;1(1):e000070. doi: 10.1136/bmjopen-2011-000070. BMJ Open. 2011. PMID: 22021748 Free PMC article.
• Public health impact of risk factors for physical inactivity in adults with rheumatoid arthritis.

  Lee J, Dunlop D, Ehrlich-Jones L, Semanik P, Song J, Manheim L, Chang RW. Lee J, et al. Arthritis Care Res (Hoboken). 2012 Apr;64(4):488-93. doi: 10.1002/acr.21582. Arthritis Care Res (Hoboken). 2012. PMID: 22278986 Free PMC article. Clinical Trial.